Abstract:The dust distributio influences directly the spread of the bacterium in ahospital inspecting room. with 3-d turbulent numerical simulation method,we analysedthe bacteria distribution in the space of the room. As a result,we have found that thedust distrib

Abstract:For the purpose of dynamic test of the air flow and thermal procceses,the computer data acquisition and processing system is designed.Its hardware and software are suited for the field of Heating-Ventilation parameters,The dynamical tempera-ture, air flow

Abstract:Hardness at elevated temperature was chosen as a reference indication ofelevated temperature strength and wear resistance,and effects on the elevated temperature hardness of contents of aluminium,copper,silicon and manganese were experimentally studied. T

Abstract:The authors investigate the thermal load conditions of the hot cylinderwall of the stirling engine,and choose the aluminium silicate fiber,the vermiculite andthe high aluminium powder,which are all made in china,as the insulating coat materials. The study

Abstract:This paper sets out to survey developments in current-mode analoguesignal processing circuits. Tracing the advances over the recent years,a number of elegant and useful current-mode circuits and active devices are described.The frontiers andrelating probl

Abstract:This paper aims to realize current-mode transfer functions by realizingadmittance driving point function Y_(11).R C passive ladder-structure current-mode filterscan be designed by properly selecting the poles and zeros of Y_(11).These current-mode circui

Abstract:In this paper,the used fault detection method based on the SequentialProbability Ratio Test(SPRT)is simply discussed,and the influence of the auxiliary signal on the average fault test time and the false alarm probability of the SPRT method isalso did.A s

Abstract:本文报导了三例混凝土工程结构的振动实测结果以及相应的分析，其中包括装配式混凝土楼盖，混凝土吊车梁和分段拼装的预应力混凝土空心连续板桥，实测结果表明，振动测试方法具有快速，简便等特点，所获取的信息量大于静力试验所获取的信息量，可在结构质量检验以及破损评估中的推广应用。

Abstract:Theory of damage assessement in concrete plane framed structure is re-searched using vibration method in this paper. Residual force vectors are used to locatedamaged regions and weighted sensitivity to assess the extent of damages. The test re-sults of a

Abstract:This paper points out that in the dynamic analysis,adopting the modelwith rigid arms is necessary for the RC beam member and specimen of eccentric compression column. The thereotical analysis and example calculation are processed,and thecorresponding dani

Abstract:This paper investigates the relationship of dynamic and static characteristics of RC columns under eccentric loading and the vibration testing method of the damage assessment of RC structures. Based on the study of the tests,a simplified computational mod

Abstract:A method for identifying the location and extent of structural damage isproposed in this paper.This method makes use of an original finite element model and asubset of measured eigenvalues and eigenvectors. In order to reduce the effect of experimental er

Abstract:In this paper,using the method of mixed monotony,we construct mono-tone sequences that converge uniformly to the unique solution of periodic boundarv valueproblem for first order functional differential equations when the functions involved donot any mono

Abstract:The influnce of sintering temperature on the microstructure and proper-ties of C-B_4 C-SiC composite was preliminary studied.The density and strength of thecomposite increase markedly with the increaing of the sintering temperature, but thespecitic resist

Abstract:Nickel-sepiolite catalyst is prepared and applied for hydrogenation ofbenzene to cyclohexane by a combined unite of microreactor and chromatograph.In the studied,hydrogenchemisoption,TPD,XRD,SEM,BET-apparatus are used to examine structure of the catalyst.

Abstract:Holschneider and Tchamitchian have discussed local regularity propertiesof one-dimesional continuous wavelet transform. Thev have established the relation between Holder continuity of one-dimensional nondifferentiable function and the decay ofthe absolute

Abstract:In this paper the equivalent of the various topologies on the closed setlattice of a topological space is investigated a sufficient and necessary condition for theirequivalent is given.

Abstract:In this paper,we discuss the independence of f(z)and C'z(or z'Az),are independent normal variables.

Abstract:In this paper,a class of one-leg methods for non-stiff problems in a Banach space is constructed.It is proved that these methods are stable and convergent oforder q when they are consistent of order q,In addition,a forecast bound of the globaltruncated er

Abstract:This paper deals with Gauss'principle of least constraint in terms ofgeneralized coordinates of a system of particles subjected to impulsive forces,and gives adefinition of constraint in this form as well.On this basis,we use the method of findingthe extr

Abstract:Research on the surface composition,chemical valence and depth distri-bution of elements of the ion-beam activated electrode,applying XPS and AES,showsthat the electro-catalytic activity of electrode is closely related with the W content of thesurface.

Abstract:A method of simplifying the program system has been proposed by usingthe lower-dimension multioptimization method.The minimum pionts of the objectivefunction have been illustrated nearby the relative component spectra respectively by re-searching in the o

Abstract:By the means of quasi-stripping analysis,a study of slow linear sweephas been applied to the H_2SO_4-GIC,prepared by anodic oxidation forgraphite in sulfuricionization. Different stripping results are found on the condition of changing interpre-electrolys

Abstract:In this paper,a GOD column of PVC has been developed successfully.Under the influnce of Magnetic field,the activity of GOD has been investigated by the flowing installation and the iodide-ISE. The magnetic field makes the activity of GOD reduce under air-